Lubeicatoe



(No Model.)l

H. R. A. BOYS.

LUBRIGATOR. No. 297,347. v /Patentegxpryza 1884.

EETcE.

PATENT HENRY B. A. BOYS, OF BARBIE, ONTARIO, CANADA.

LUBRICATO R.

SPECIECATON forming part of Letters Patent No. 297,347, dated April 22,1884.

Application tiled January 17, 1584. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, HENRY RAMMEL ALvns BOYS, ot' Barrie, in the Provinceof Ontario and Dominion of Canada, haveinvented a new and ImprovedLubricator, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide a simple and efficientlubricator to feed oil or other lubricant to the valvesof steam-enginesmore particularly, but which Will serve well in other situations or forother or more general lubrication.

The invention consists of an arrangement of an oil-feeding cylinder andpiston and a gage-cylinder and piston, so that the outward movement ofthe piston to feed the oil from the oil-cylinder shall cause acorresponding outflow of the gaging-liquid from the gagecylinder tomeasure the rate of feed of the oil; and in an arrangement of asight-glass on the gage-cylinder to indicate the feed of the oil; and inthe combination, with the oil-feed and gage-cylinders so arranged, of anoil-reservoir adapted to supply oil to the moving valves of the enginewhen the steam-pressure is cut off and the feed from the oil-cylinderceases.

The invention includes, also, special constructions and combinations ofthe parts of the apparatus to insure its economical construction andoperation, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying` drawings, forming part ofthis specification, in which similar letters ot' reference indicatecorresponding parts in all the figures.

Figure l is a side elevation of my improved lubrieator. Fig. 2 is alongitudinal sectional elevation of the same; and Fig. 3 is acrosssectional elevation on the line x x', Figs. 1 and 2.

In constructing my improved lubricator the oil-feeding and gagecylinders may have avariety of forms, and may be diiierently positionedwith relation to each other within the scope of my invention.

The drawings illustrate a preferred arrangement of thc Acylinders andconnections as adapted for feeding the lubricant to the steamchest andvalves of a locomotive-engine, the oil and gage cylinders being arrangedin line with each other.

The letter c indicates the oil-cylinder, and b the gage-cylinder,connected in line by a screw-plug, c, and having, respectively, thepacked pistons d e, with rods f g passing through stuffing-boxes tfi inplug c and the end Wall, j, of cylinder Z), respectively. Theoil-cylinder a has an opening at 7c, through which the cylinder isfilled with oil, and which is closed by a screwplug, as shown. Oylindera also has a passage, Z, in and along its side wall. (Shown in thisinstance at the top of the cylinder.) Said passage Z opens at m to thebore of the cylinder at one end,and at the other end is fitted with aplug-valve, a, by which the discharge of oil from the cylinder may beregulated to a nicety.

In and along the Wall or cylinder a, preferably opposite the passageZ, Iform a passage, 0, which ranges down through the post or stand` ard p,which supports the cylinders a b upon the steam-chest cover q, and opensinto the chest for a steam and oil way to andvfrom the cylinder a. Avalve, r, controls the flow of steam to the cylinder a, as shown.

Below the gage-cylinder b, Iplace a pan or vessel, c, over which threeseparate pipes or nozzles connecting with the cylinder are arranged,viz: a pipe, t,valved at t,and through which thegaging-liquid-preterably glycerine-is drawn from vessel s to charge thecylinder on the back-stroke of piston e, a nozzle, u, for escape ofliquid which may have leaked past piston e back into the vessel s, and apipe y or tube, a, made of glass or other transparent material, throughwhich the gaging-liquid drops back to the vessel s on the forward strokeof piston e, caused by the pressure of the end of the piston-rod fagainst it.

The drop of the gaging-liquid through the sight glass or tube a iscontrolled by a suitable valve, w, which connects with the cylinder b bya passage, rIhe valve w may be closed to check the feed ot' oil bypreventing the escape ofthe liquid from cylinder b, and consequcntlyresisting the advance of the piston d in the oil-feeding cylinder a, orvalve w may partly be closed to aid the oil-feed valve n in checking theliow ofoil to the steam chest; but in practice I propose to leave theValve w wide open when the oil is feeding to the enginevalves, and closeit only when the cylinder b IOO As thus far described, the lubricator iscom.

pletely adapted for use with any ordinary type of stationary enginewhere the steanrsupply is constant, or nearly so; but for use onlocomotives or hoisting and other engines, where the steam-supply isintermittent, as when stopping and starting the engine or machine, it isnecessary that themoving valves be lubricated independently of thepressure of steam through the passage o,and toeffect this I arrange anoilreservoir, a, near cylinder a, with a passage, b, connecting with thesteamway o, and preferably between the valve r and the steam-chest q.

The oil-reservoir a may have any suitable construction embodying thepassage b', and a downwardly-opening plug-valve,c; but I prefer to makethe oil-reservoir proper, d', as a separate vessel with a feed-aperture,e', at the bottom, controlled by aplug-valve, f', screwing into across-bar, g,of the vessel d', and having any suitable head, h', towhich access may be had onremoving the cover i of the reservoir forsetting the valve f to control the feed of oil to passage b; and thevessel d may be refilled while in its seat in the reservoircasej, or maybe removed therefrom for the purpose. This case j affords convenientmeans of holding and seating the valve c', and also the side valve, la',by which latter valve the flow of oil from the reservoir may wholly becut off.

The operation is as follows: To charge the lubricator the valve w isclosed after piston e has been. drawn out or fully forward by graspingthe head Z of the rod g, or otherwise, and by forcing the piston backagain the glycerine placed in the vessel s will be drawn by suctionthrough the upwardly-opening valve t', following the piston e, andfilling the cylinder b, the piston e at the same time acting on the endof rod f to force piston d tothe farther end of the oil-cylinder a. Theplug at l.; is now removed, and said cylinder a is filled with the oilor other lubricant and the plug` replaced. The reservoir-vessel d ischarged with oil, and the valve n f adj usted for the desired rate offeed of the oil. The valve w is fully opened for escape of the glycerinefrom cylinder b, and the apparatus is ready for action upon opening thevalve r, which, being done, the steam from chest q passes throughpassages o behind the piston d and drives it forward, ,forcing the oilthrough passages yml o to the steam-chest, and driving the piston eforward'also by the rod f, to force through valve w and the sight-glassu a quantity of the glycerine from cylinder l), corresponding exactlywith the amount of oil discharged from cylinder a, and hence the flow ofthe glycerine drop by drop through the sight-glass a clearly indicatesalways the rate of feed of the oil to the steam-chest and steamvalves ofthe engine. While the steam passes freely to the steam-chest from thesteam-boiler, the valve 7c being open, the steam-pressure throughpassage b seats the valve c and cuts off the flow of oil from the vesseld; but when the steam-pressureis cut olf the valve e drops and permitsfree flow of the oil to the chest q, to lubricate the moving valves asthe engine or'machine is stopping, as will readily be understood.

rlhe piston-rod fis made large to give a considerable greater area forthe steam to act on the pistou d than the area of the inner face of thepiston, which forces the oil forward to insure a positive oil-feed. l

The quantity of oil in cylinder a always is indicated by the extent ofthe projection of the end of rod glfrom its cylinder b; and if thevessels be closely covered from dust the same charge of glycerine may be usedover and over again for a long time, and the lubricator can be made towork -in any position by adapting its passages or steam and oil ways tothe special conditions of use.

Where low pressure of steam is employed, the steam may beadmittedbetween plug c and the piston e of the cylinder b, to aid the effectiveaction of the apparatus.

Although I prefer to operate the lubricator by direct steam-pressure, asabove described, and as used for lubricating the valves of engines, itwill readily be seen that the duplicate oil and gage cylinder pistonsmay be pulled or pushed by spring-power, or by the gravity of weightssuitably arranged for the purpose; hence my improved lubricator may beapplied to use not only with steam-valves, but in many other situationswhere steady and economical lubrication is required.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A lubricator constructed with an oil-cylinder and forcing-piston anda liquid-gage cylinder and forcing-,piston so arranged with relation toeach other that the outward pressure of the lubricant by the piston ofone cylinder shall cause a corresponding outflow of the liquid from theother cylinder to measure the rate of feed of the lubricant,substantially as shown and described.

2. A iubricator constructed with an oil-@y1- inder, a, and agagecylinder, b, provided with connecting-pistons d e, and having atransparent passage, u, for the gaging-liquid, to indicate the rate offeed of the lubricant, substantially as shown and described.

3. A lubricator constructed with oil-cylinder a and gage-cylinder b,connected in the line by a plug, c, and provided with pistons de, to bemoved one by the other, substantially as shown and described.

4. The combination, with the oil-cylinder a,

of its piston d, passages m, Z, and o in and along the side wall ot' thesaid cylinder, and the valve n, substantially as shown and described. 5.The combination, with the gage-cylinder IOO IIO

b, of its piston e, pipe and valve t t, and the valve w, substantiallyas shown and described.

6. The combination, with the oil-cylinder a, having piston d, and rod f,passages m Zpo, and valve n, of the gage-cylinder b, having piston e,pipe and valve t t', valve w, and sightglass u, substantially as shownand described.

7. The combination, with the gage-cylinder b and its piston e, pipe t,valve t', and dropvalve fw, ofthe vessel s, substantially as shown anddescribed. Y

8. The combination, with the gage-cylinder b and vessel s, of thedrip-nozzle u', substantially as shown and described.

9. A lubricator constructed with oil and gage cylinders a b, havingpistons d and e acted on one by the other, and arranged to feed the oiland measure the feed, and with an oil-reservoir having adownwardlyopening valve, c', to be closed by steam-pressure while thepiston of cylinder a is forced for- Ward by the steam-pressure to feedthe oilv from said cylinder, and said reservoir being arranged to feedoil by an opening of its valve Y c when the steam-pressure is ont oft'and the 25 feed from the oil-cylinder a ceases, substantially as shownand described.

10. The reservoir a', constructed with a case, j', apertnred to receivethe oil-vessel d, constructed with an opening, e', and a valve therefor,and the valve o', and said case connecting by a passage, b', with thesteam-chest q, substantially as shown and described.

ll. The combination, with the casej, of the reservoir a', having theoil-vessel d', apertured at e', and valve c of the cut-off valve k',substantially as shown and described.

12. The reservoir c. constructed with an apertured case, j, having avalve, c', controlling a passage, b, to the steam-chest, and anoil-vessel, d', apertured at e', and having the adj nstableplug-valvef,substantially as shown and described.

HENRY R. A. BOYS.

Witnesses:

S. M. SANFORD, F. M. SMITH.

